In addition, the Osmocom project also develops and maintains the OsmoPCU, OsmoSGSN and OpenGGSN programs for adding GPRS/EDGE capabilities.

We have started with the Siemens BS11 microBTS, mainly targetted the ip.access nanoBTS for some years, but has since been extended to support a variety of other BTS equipment like the Ericsson RBS 2000 family. Today, most of the users and active developers work not with proprietary BTSs, but with BTSs running our OsmoBTS software, i.e. either the sysmoBTS family of hardware or SDR based hardware with OsmoTRX like the UmSITE.

We are always looking for HardwareDonations of any kind of GSM / 3G related carrier equipment.

There is also continued work on creating a Free Software / Open Source software SS7 (M3UA, SUA, SCCP, TCAP, MAP) protocol stack in Erlang, as well as a number of other side projects like the SIMtrace protocol tracer/sniffer for (U)SIM APDUs.